00326nam a2200121 a 450000500170000002000150001708200150003210000160004724500480006326000460011130000230015770000240018020251203091952.0  a8170234638  a511.5bCLA  aClark, John  aFirst look at Graph theory, John Clark, eng  aLoNew Delhion, World Scientific, GBc1995  axiv, 330p.c22 cm.  aHolton, Derek Allan